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====== Ubuntu - GPU - Vulkan - Troubleshooting - Vulkan Segmentation Error ======

<code bash>
vulkaninfo
</code>

returns:

<code bash>
WARNING: [Loader Message] Code 0 : terminator_CreateInstance: Failed to CreateInstance in ICD 0.  Skipping ICD.
Segmentation fault (core dumped)
</code>

----

===== Fix =====

Rename the file **/usr/share/vulkan/icd.d/lvp_icd.x86_64.json**

<WRAP info>
**NOTE:**  Find out which package provide this file: <code bash>
dpkg -S /usr/share/vulkan/icd.d/lvp_icd.x86_64.json

returns:

mesa-vulkan-drivers:amd64: /usr/share/vulkan/icd.d/lvp_icd.x86_64.json
</code>

</WRAP>

and...

<code bash>
export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json:/usr/share/vulkan/icd.d/radeon_icd.i686.json
</code>

and retest:

<code bash>
vulkaninfo
</code>

returns:

<code bash>
ERROR: [../src/amd/vulkan/radv_device.c:766] Code 0 : This version of RADV does not support RDNA3 yet. (VK_ERROR_INCOMPATIBLE_DRIVER)
ERROR: [Loader Message] Code 0 : setup_loader_term_phys_devs:  Failed to detect any valid GPUs in the current config
ERROR: [Loader Message] Code 0 : setup_loader_tramp_phys_devs:  Failed during dispatch call of 'vkEnumeratePhysicalDevices' to lower layers or loader to get count.
ERROR at ./vulkaninfo/vulkaninfo.h:230:vkEnumeratePhysicalDevices failed with ERROR_INITIALIZATION_FAILED
</code>

----

===== Set Environment Variables =====

<code bash>
export VK_ICD_FILENAMES=/opt/amdgpu-pro/etc/vulkan/icd.d/amd_icd64.json
</code>

<WRAP info>
**NOTE:**  if amdgpu-pro is not installed then use this:

<code bash>
export VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.x86_64.json:/usr/share/vulkan/icd.d/radeon_icd.i686.json
</code>

</WRAP>

and retest:

<code bash>
vulkaninfo
</code>